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The quadratic equation whose roots are t...

The quadratic equation whose roots are three times the roots of `3ax^(2)+3bx+c=0` is

A

`ax^(2)+3bx+3c=0`

B

`ax^(2)+3bx+c=0`

C

`9ax^(2)+9bx+c=0`

D

`ax^(2)+bx+3c=0`

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WB JEE PREVIOUS YEAR PAPER-QUESTION PAPER 2009-MULTIPLE CHOICE QUESTIONS
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  2. The rate of increase of a side of a square is 1 cm/sec. The rate of in...

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  3. The quadratic equation whose roots are three times the roots of 3ax^(2...

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  4. Smaller area enclosed by the circle x^(2) + y^(2) = 4 and the line x +...

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  5. In triangle ABC, a=2, b=3 and sinA=(2)/(3),then B is equal to

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  6. Let [x] denote the greatest integer less than or equal to x, then the ...

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  7. Let , m be the the smallest positive interger such that the coefficien...

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  8. The circles x^(2)+y^(2)-10x+16=0 and x^(2)+y^(2)=a^(2) intersect at tw...

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  9. int(2sin^-1x)/sqrt(1-x^2)dx=

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  10. The number of points on the line x+y=4 which are unit distance apart f...

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  11. The value of sqrt(2+sqrt(2+ sqrt(2….oo))) is

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  13. If ab = 2a +3b, a gt0, b gt 0, then the minimum value of ab is-

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  14. If 2cos 3theta=1, then the value of theta is

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  15. For any complex number z, the minimum value of |z|+|z-1| is

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  16. The number of common tangent to two circle x ^(2) +y^(2) =4 and x^(2) ...

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  17. If C is a point on the line segment joining A (-3, 4) and B (2, 1) suc...

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  18. If a, b, c are real, then both the roots of the equation (x -b )(x -c)...

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  19. Find the sum of the following geometric series : 1+(1)/(4)+(1)/(16)+...

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  20. A(-2,7),B(7,15),C(-1,-5)andD(h,k) are the vertices of a parallelogram...

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